Transient and synchronization behaviors of a standing-wave TA (Thermoacoustic) laser pair
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The transient and synchronization behaviors of a TA (thermoacoustic) laser pair were investigated experimentally for various crossing angles and different separation distances between the laser openings. Sound waves generated by the lasers were measured and analyzed at or near the focusing point by means of microphones, SPL meters, and a commercial software called Signal-Express. The two TA lasers were acoustically coupled through the air mass between their openings, and the only mode-locking operation that could be achieved was the one that was nearly 180° out of phase. The time to achieve synchronization was found to be dependent upon the initial mistuning of the frequencies and the crossing angle between the laser axes. The synchronization process could also be accelerated by turning on the laser with the lower power input first.
Abstract
The transient and synchronization behaviors of a TA (thermoacoustic) laser pair were investigated experimentally for various crossing angles and different separation distances between the laser openings. Sound waves generated by the lasers were measured and analyzed at or near the focusing point by means of microphones, SPL meters, and a commercial software called Signal-Express. The two TA lasers were acoustically coupled through the air mass between their openings, and the only mode-locking operation that could be achieved was the one that was nearly 180° out of phase. The time to achieve synchronization was found to be dependent upon the initial mistuning of the frequencies and the crossing angle between the laser axes. The synchronization process could also be accelerated by turning on the laser with the lower power input first.
참고문헌 (9)
- K. Chen, "Acoustic energy output and coupling effect of a pair of thermoacoustic lasers", Int. J. Energ. Res, 36, pp.477~485 (2012)
- L. Zoontjens, "Numerical comparison of the rmoacoustic couples with modified stack plate edges", Int. J. Heat Mass Transfer, 51, pp.4829~4840 (2008)
- R. Surathu, "Astudy of coupling two thermoacoustic lasers", Master, pp.2012
- C. Shen, "Performance of solar powered thermoacousti engine at different tilted angles", Appl. Therm, Eng, 29, pp.2745~2756 (2009)
- Z. Wu, "Asolar-powered traveling-wave thermoacoustic electricity generator", Sol. Energ, 86, pp.2376~2382 (2012)
- O. G. Symko, "development of high-frequency thermoacoustic engines for thermal management in microelectronics", J. Microelectron, 35, pp.185~191 (2004)
- O. G. Symko, "Compact thermoacoustic array energy converter", US Patent No. 8004156, ~ (2011)
- B. G. McDonald, "Coupling of midaudio frequency thermoacoustic prime movers", J. Acoust. Soc. Am, 125, pp.2563~ (2009)
- P. S. Spoor, "Mode-locking of acoustic resonators and its applications to vibration cancellation in acoustic heat engines", J. Acoust. Soc. Am, 106, pp.1353~1362 (1999)